High elongation linear elastic guidewire

Details High elongation linear elastic guidewire High elongation linear elastic guidewire

A - Human Necessities

61

B

A61B 17/00 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2079480

A guidewire (10) and a method for its manufacture, wherein at least the distal portion (18) of the guidewire (10) comprises an element made of a precursor of a superelastic alloy such as a Ni-Ti linear elastic alloy. The element exhibits a stress-strain curve with a linear stress-strain relationship and a yield point. AT room temperature to body temperature the precursor is in the martensitic phase. The distal portion (18) of the guidewire (10) is deformable beyond the yield point by the physician in the field to a desired set shape and exhibits resistance to kinking during insertion into the body as a result of its elasticity.

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